Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S
The AirTAC ACQJ140X75-10S is a double-acting, single-rod JIS compact cylinder featuring an external threaded stop with a lock nut on the extend side. This big-bore unit allows on-machine end-position tuning without swapping parts. The usable extend range spans 65 to 75 mm, shortened from the 75 mm full stroke by up to a 10 mm window, while the retract stroke remains unaffected.
Because the piston area is unchanged, the output force equals a standard ACQ of this bore, delivering 7696.9 N push and 7294.8 N pull at 0.5 MPa. The body uses fixed elastomer bumpers for end-of-stroke deceleration rather than adjustable air cushions. Equipped with a built-in magnet (-S), the unit operates with reed or electronic solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 75 mm |
| Adjuster thread | M27×2.0 |
| Port size | PT3/8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M22×2.5 (F) / M30×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø140mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×75 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S Is Used
Heavy Press Tonnage Stops
Dial in the exact 65 to 75 mm extend position for large metal-forming presses during product-changeover without machining new stop collars.
Large Fixture Clamping
Adjust the clamping reach on the fly for varying automotive subassembly fixtures to accommodate different part heights quickly.
Trial End Positions
Safely test and set trial extend endpoints on heavy woodworking machinery before locking the M27x2.0 adjuster nut into its final place.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S the Right Cylinder?
Selecting this Ø140 model provides a maximum push of 1570 kgf at 1.0 MPa. If your application requires less thrust, the neighboring Ø125 bore yields 6135.9 N push at 0.5 MPa, whereas the larger Ø160 bore generates 10053.1 N push. A fixed-stroke ACQ is sufficient if your extend endpoint never varies. When ordering, verify the 75 mm full stroke, 10 mm adjuster window, PT3/8 port, M22x2.5 female rod thread, and the -S magnet option.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-10S FAQ
The force is identical to a standard ACQ: 7696.9 N push and 7294.8 N pull at 0.5 MPa, 10775.7 N push at 0.7 MPa, and a max push of 1570 kgf at 1.0 MPa. The 75 mm full stroke has a 10 mm adjustable window, yielding a usable extend range of 65 to 75 mm. The retract stroke is unaffected.
An external M27x2.0 threaded stop screw with a lock nut limits how far the rod extends, shortening the stroke length only. It does not alter piston area, so force is unchanged. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration instead of adjustable air cushions. Note that a plain ACQ-type cylinder will drift on air loss; use an external rod lock or pilot-operated check valve for fail-safe load holding.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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